code: def __call__(self, val: int) -> int:
      return val + self._increment
  
file_path: ray/doc/source/serve/doc_code/model_composition/chaining_example.py
imports: from ray import serve
  from ray.serve.handle import DeploymentHandle, DeploymentResponse
label_desc: Use image node_id 2 for calling the Adder obj's underlying member method code with example usage: obj.__call__(val) and returns: unknown